After reading many post on this issue and how I handle my very dark screenies so I can see what I have a snapshot of, I have found that you need to adjust the brightness and contrast on your monitor. Although I change my contrast and brightness with Picture it 9, I can also do it with my monitor adjustments.
This shot was completely dark. I adjusted contrast and brightness. Attempt to do this with your videocard adjustments. Play with gamma also within you videocard program. The many post with reloading using light atmosphere did not help. Seems to be a monitor adjustment or a contrast/brightness with your videocard program.